Steam iron



Aug. 24, 1926.

O. W. BRENIZER STEAM IRQN 1925 3 Sheets-Sheet 2 Filed March 25 Aug. 24,1926.

O. W. BRENIZER Fviled March 25, 1925 sgEAM IRON 3 Sheets-Sheet 5 Patented Aug. 24, 192,6.

UNITED STATES PATENT 'oi-i-ic-E;

oasoN w.- BaENIzna, or PHILADELPHIA, rnNNsYLvANIA.

\ STEAM IRON.

Application led Hatch 23, 1925. Serial No. 17,492.

This invention relates to improvements in steam pressing irons adapted to be passed over articles of clothing and fabrics of variousfkinds for steaming or dampening and press' the same.

j An o ject of my invention is to provide an I' iron with a steam generator havmga continuous passage for water, steam'and superheated steam, the parts of which are constructed and arranged so'that 'water may be received in one lpart of the p e, lgenerated into steam in another part o the passage and the generated steam superheated in anotherpart ofthe passage and to so construct and arrange the partsof the passage that'all dan er ofwater being .forced by' or smoothing, surface of the iron; and a furconstruction which can be l cost and which will be dura le and eilicient 'ther object is to provide an iron-of novel roducedat low when in service.

with the' foregoing and related objects in view, the invention consists of the elements and the combinations lof them hereinafter plate 12 is a steam generating device 14 com- Aprising an inner body 15 of suitable electrical insulating and heat resisting. matedescribed and claimed.

f Y In the accompanying drawings,illustrat in the invention,

igure 1 is a vertical longitudinal section of aniron showing one forni of embodiment of my invention.

lFigure 2 is a side view of the base plate and certain of the parts mounted thereon. Figure 3 is a rear elevation of the iron. Figure 4 is a rear view of the base plate and some of the parts mounted thereon.

Figure 5 is a detail, artly in section,

showing the water supp y valve and adjuncts.

Figure 6 is .a horizontal section through the iroh on line 6-6 of Fig. 1

Figure 7 is a bottom view of the iron.

Referring to the drawings, 2 designates the base plate of the iron, having its forward end portion pointed and, being shaped, as clearly shown in the drawings.' The forward portion ofthe basep1ate2 is provided with a V-sha ed series of erforations?) oli lowing the; e 'ge lines of t e plate, as s'hown'v in Fig. 7, and providingsteam passages 'from which steam maybe discharged from the bottom of the plate. v

AThebase plate 2 is provided with a hollow part 4 forming a steam chamber 5 which 'l is in communication'with the perforations 3. This art maybe constructed` and related to the p ate 2 in any manner suitable for itsv intended purpose. .Asherein` illustrated, the part 4 is formed se arately from the plate 2 -and it -is secure thereto ,b means' of screws 7, a suitable gasket 8 eing interposed between the plate 2 and part 4 to form @a tight joint. Resting upon the baseplate -2 sideby sidev are two pads 9 of 4suitable electrical .insul'ating material in whic isl embedded an electrical heating element 10 comprising two zig-zag shaped wires, see Fig. 7, which are joined at their forward ends and which have their rearward ends connected to two' binding' posts 11 on the pads 9. This felement serves to heat Vthe base plate 2 and keep it at the desired temperature when current is supplied theretoA when the iron is in service. The pads 9' and the heating ,element 10 -therein are 'clamped to the base plate 2 by and between a metallic supporting plate 12 which is held in place by screws 13 pasing through the plate- 12 and screwed into the plate 2. f

Detachably mounted on the supporting rial having .a central opening extending vertically. therethrough, an electrical heating element 16 consisting of a vertically extending coil of wire surroundingthe body 15, a vertically extending coil of metal pipe 17 surrounding the element 16, a layea'of mica 18 interposed between the element 16 and ipe coil 17, a body of suitable electrical insu ating and heat resisting material A19 surrounding the mica layer 18 and in which the i ipe coil 17 is embedded, and a' suitablerein orcing element 20 embedded in the body 19. The steam generating device 14 is detachably secured to the top of the supporting plate 12' by a top plate 21 and a screw 22. The top plate 21 engages the top of the insulating body 15 and the screw 22 penetrates the-plate 2l and extends'down through the opening in the body 1 5 and, is

screwed into the plate 12 in a manner to clamp the body 15 betweenl the plates 21 and 12. f

The parts other than the base plate 2,

thus -far described, are enclosed within ahousing 23 which is arranged on the base plate 2 and. forms the main body of the iron. The base'plate 2 and housing 23 are detachably secured together by osts 24 and 25 which are screwed into-the 'ase plate 2 and extend upwardl therefrom t rough and beyond the top o the housing 23. The

upper end portions of4 the posts 24 and 25 arethreaded for the reception of nuts 26 and 27, respectively, which are screwed down upon the housing 23. After the nuts extending end arms 30 and 31 connected'by a bolt 32 carrying a suitable handle 33 by means of which the iron may be manipulatedwhen in service. f v

The upper endfofthe `pipe coil 17 terminates in a forwardly extending arm 34 carrying a hollow head 35 in communication therewithvand4 having an open bottom in registry with an openmg in the top of the part 4 to allord'communication between the upper end of the ipe coil 17 and the steam chamber 5. Tv e post 25 extends through the chamber 5 and head 35, and the head 35 is clamped. upon the part 4 by a nut36 screwed on to the post 25, a gasket 37 being interposed between the\part 4 and,

head 35 vto rovide a tight joint. After the housing 23 lias been removed from the base plate 2, the steam generating device 14 may be readily .removed after removing the i screw 22 from the plate 12 and removing the nut 36 from the post 25.

Thl lower end of the pipe coil 17 terminates in an arm 38 which' extends upwardly therefrom and is secured to and commum-v cates with asleeve 39 .which extends through an opening in the hpiising 23. The lower end portion of thesleeve 39 is provided with body portion of a suitable needle valve42.

which communicates with the sleeve 39 and which has a suitable water supply pipe 43 connected therewith. It will thus be seen that watermay be su plied'to the coil17 i from the supply ipe 4 under suitable pressure, and that t e Supply of-Water t9' the,

the valve 42.

coil 17 may be nicely regulated by adjusting y i The terminal portions 44of the wire coil or heating element 16 are connected to the binding posts 1l, and the posts 11 are con!" nected by detachable plates 45 to a pair of electrical conductors 46 formed by stii Wires which 'are carried by the housin 23 and electrically insulated therefrom. T ese terminals 46 are positioned to receive a suit- 'able detachable connecting lplug to be inserted into 'a lsleeve 47 whici is carried by the arm 30 of the handle bracket 29 'as a means of supplying electric current from a suitable source to the conductors 46.*

It will now be understood that the heating elements 10 and 16 are connected in parallel. The two heating elements are proportioned and related to each other as to the length and gauges of the wires em loyed thereinso that the resistance of thee ement 16 is lower ythan that ofthe element 9 and so that the element 16 will provide more heat than the element 9. I am thus' enabled to provide suflicient heat in the steam plate 2 at the desired temperature when in service without danger,y of overheating it.

.generating device 4 for the production of The pipe coil 17 is composed of a -number i of super osed turns or la ers. layer or ayers constitute t e water heating portion of the coil, the layer or layers of the coil which are intermediate 'the lower to thebottom of the coil and conducting the 'superheated steam'from the to I of the coil, I am enabled to produce super cated steam and discharge it from the top of the coil17 without any danger of the steam pressure forcing any water out through the discharge end of the coil even though the iron be tilted at many different angles when in servlce.

The/ superheated steam discharged from the coil 17 passes through its arm 34, the

head 35 andchamber 5 to the perforations 3 The lower lll) from which it is discharged to dampen 'the article of clothing or'piece of fabric being pressed' orironed.

The rearward wall of the housing 23 has an opening 50 therein which is normally closed by a removable plate 51E held in place by screws 5 2. This plate may be removed y having perforations therein providing steam 44base pla-te, a vertically extending to afford access through the opening 51 to detach the plates of the conductors 46 from the binding posts 11 when it is desired to remove the housing 23 from the base plate 2, as previously described.

I claim as my invention:-

l. In a steam pressing iron, a base plate having perforations therein providing steam discharging passages, a flat electrical lheating element extending horizontally over the eating element rising from above the first named element, a vertically extending ipe coil adjacent to the vertically exten ing heating element, means for conducting water to the lower end of said Coil, means for conducting steam from the upper end of said coil to said peroratio-ns, and meansxfor supplying current to said elements.

2. In a steam pressing iron, a base plate having perforations therein providing steam. discharging passages, an electrical heating element secured upon the base plate for heating the same, a steam generating device provided with an electrical heating element secured upon the first named element and communicating with the perforations in the base plate, .said elements being connectedin parallel and the resistance of the rst named element being higher than that of the second named element,l and a pair of electrical conductors connected to said elements .for supplying current thereto.

3. In a steam pressing iron, a base plate discharging passages, `a pipe coil thereon forming a continuous passage, and including a lower water heating' layer, 'am intermediate steam generating layer abovethewater heating layer and an upper layer above the intermediate layer for superheating the steam, means for-conducting steam `from the "upper layer of the pipe coil to the perforations inthe base plate, means for con ducting water to the lower layer of the pipe coil, and means for heating the pipecoil.

4. Ina steam pressing iron, a base plate having perforations therein providing steam discharging passages, a vertically extending pipe coil thereon forming a continuous pas'- sage and including a lower .water heating layer, an' intermediate steam generating layer above ,the water heating layerxand an 'upper layer abovel the intermediate layer. for,

superheating the steam, a vertically extend- 5 ing electrical heating coil, one of said coils surrounding the other of said coils adjacent thereto,l means for conducting steam from the upper layer cf the pipe'coil to the perforations in the' base plate, means for -conducting Water to the lower layer of the pipe coil, andA a pair of electrical conductors forsupplying current tosaid heating coil.

5.. In a steam. pressing iron,l a base plate havlng perforations therein providing-steam 'in the same, a ,vertically extending dischargin passages, an electrical heating element a jacent tothe base plate for heating the same, a pipe coilv above and separated fromsaid element and forming a conl trical heating element adjacent to the pipe coil for heating the same, and a pair of electrical conductors connected to said-elements for supplying current thereto.

6. In a steam pressing iron, a base plate having perforations therein providing steam discharging passages, an electrical heating element adjacent to the base plate for heating the same, a pipe coil above and separated from said element and forming a continuous passage and includingl a lower `water heatinglayer, an intermediate steam generating layer above the water heating layer and an upper layer above the intermediate layer for superheating the steam, means for conductin steam from the upper layer of thepipe coi to the perforations in lthe base plate, means for conducting water to the lower layer of the -pipe coil, an electrical heating element adjacent to the pipe coil for heatm the same, said elements vbeing connected 1n parallel and the resistance of the first named element being higher than that of the second named element, and a pair of electrical conductors. connected to said elements for supplying current theretor v 7. Ilia steam pressing iron,'a base plate having perforations therein providing steam electrical heating coil for heating said pipe coil, one of said coils surrounding the other of said coils adjacent thereto, means for' conducting steam from the upper layer of the pipe coil to the perforations in the base plate, means for conducting water to the lower layer Ofiih Pipe Coil, and @Pair 'Of-'712e electrical conductors connected to saidplg; ment and said heatingv coil for supplyingJr current thereto.

. 8. In asteam pressing iron, a base platehaving perforations therein providing steam discharging passages, an electrical heating element adjacentto the base plate forheat- 'vae coil separated from said element "and aving a series of superposed layers forming afco'ntmuous passage, a vertically extending elecdischarging passages, an electrical heating a continuous passage, a vertically-exten g trical heating coil for heating said pipel coil, one of saidl coils surrounding the other of said-coils adjadent thereto, means for conducting steam from the upper layer'of the pipe coil to the perforations in the lbase late, means for `conducting water to the ower layer of the pipe coil, said elements being connected in parallel and the resistance of the first named element being higher than that of the second named element, and a pair of'electrical' conductors connected to said element and said heating coil for supplying current thereto;

9.k Inga steam pressing iron, a base plate A.having perforations therein providingsteam discharging passages,` anelectrical heating element ,adjacent to the base platey for'heat- .v ing the same, a vertically extending pipe coil thereon forming a, continuous passage and including a lower water heating layer,

an intermedlate' steam generating layer above the water heating layerand an upper layer above the intermediate layer for su erp of said coils adjacent thereto, means for con- V ducting steam .from the upper layer ofthe pipe coil to thepperforationsi'n the basej plate,l means for conducting water tothe ower 1a er of the pip@ Coil, and a Pair off electrica conductors connected to said element and said heating coil for supplying current thereto.

In testimony whereof I aizriny signature hereto.

ORSON W, BRENI'ZER.; 

